Fuel Cell Based DC-AC Single Phase QZSI for Low Voltage Grid Utility

Abstract

1ϕ qZSI inverter is most popular for renewable energy sources like PV and fuel cell due to its unique shoot through large boost voltage capability. A fuel cell is a clean and efficient source of electricity. Fuel cell needs fuel for continuous production of electricity but it can give good performance irrespective of seasonal changes, unlike PV cell. In this paper, proton exchange membrane fuel cell (PEMFC) based 1ϕ qZSI is interfaced to a low voltage grid. PEMFC is operated with low temperature and has lower emission of carbon dioxide. This paper focuses on the performance of PEMFC based 1ϕ qZSI on low voltage grid utility in the presence of 100Hz ripple. As in single-phase circuit, 100Hz ripple is more dominant; it causes more energy loss and shortens the lifetime of renewable source like a fuel cell. Hence, this article will also discuss how much percentage of 100Hz ripple present in qZS inductor current and capacitor voltage using proper calculation. The simulation results are found using MATLAB/SIMULINK